The gaseous hydrocarbon acetylene,
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w many grams of oxygen gas are needed for the complete combustion of 150 g of acetylene?
Interpretation:
The mass of oxygen gas required for complete combustion of acetylene should be determined.
Concept Introduction:
The complete combustion of acetylene is represented as follows:
The mass of oxygen required for complete combustion can be calculated from its number of moles and the number of moles required will depends on the number of moles of acetylene react in the chemical reaction.
From the above balanced chemical reaction, 2 mole of acetylene reacts with 5 moles of
The mass of acetylene is given 150 g, number of moles of acetylene can be calculated as follows:
Here, m is mass and M is molar mass.
Molar mass of acetylene is 26.04 g/mol, number of moles will be:
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